Battery pack with rapid heat dissipation structure

Abstract

The utility model discloses a battery pack with a quick heat dissipation structure, which comprises a battery shell, a water storage tank body is arranged at the lower end of the battery shell, a water pump is arranged at the right part of the upper end of the water storage tank body, an air cooling device is arranged in the middle of the front end of the battery shell, and the battery pack is arranged in the battery shell. And the front part and the rear part of the right end of the battery shell are jointly provided with a liquid cooling device. According to the battery pack with the rapid heat dissipation structure, water in the water storage tank body is pumped through the water pump and conveyed into the water cooling pipeline through the water conveying pipeline, the water flows back into the water storage tank body through the backflow pipeline on the second connecting seat after passing through the water pump, and the water cooling pipeline is arranged in the battery pack, so that the water cooling effect is greatly improved. When water circularly passes through the water-cooling pipeline, heat in the battery pack can be effectively taken away, meanwhile, heat dissipation is conducted on the interior and the exterior of the battery pack at the same time in cooperation with the heat dissipation fan, the heat dissipation effect of the device is effectively improved, and then the service life of the battery pack is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a battery pack with a rapid heat dissipation structure. Background Art

[0002] In recent years, energy storage technology has made rapid progress, especially the progress of lithium battery technology as the main energy storage technology, which has not only gotten rid of the cumbersome lead-acid technology used before, but also more in line with environmental protection requirements. The energy storage industry has been able to rise on a large scale, and the application of battery energy storage modules has also increased. The functions of battery packs are becoming more and more complex, and the charging current is also increasing. Even for rate-type cells, under high-power working conditions, the cells will generate a lot of heat that accumulates in the sealed shell of the battery pack and cannot be dissipated or cooled. High temperature affects the normal operation of the battery pack and also has a great impact on the service life of the battery pack.

[0003] The existing patent (application number 201921660065.3) discloses a low-cost and efficient heat dissipation battery pack, including an outer shell and a plurality of lithium batteries correspondingly arranged inside the outer shell, a heat-conducting layer is provided between the left side or right side of all the lithium batteries and the outer shell, and a compensation unit is provided between the right side or left side of all the lithium batteries and the outer shell in coordination with the heat-conducting layer; a PCB board is provided on the top of all the lithium batteries, and the PCB board is arranged in coordination with the pole ears of the corresponding lithium batteries through a plurality of nut rows.

[0004] Existing battery packs, such as the above patent, mostly dissipate heat by providing a heat-conducting layer or by using a fan to blow air. However, these methods mostly dissipate heat on the outer surface of the battery pack, and it is difficult to dissipate heat quickly inside the battery pack, which results in poor heat dissipation effect of the device and affects the service life of the battery pack. Utility Model Content

[0005] The main purpose of the utility model is to provide a battery pack with a rapid heat dissipation structure, which can effectively solve the problem that the battery pack cannot obtain good heat dissipation inside.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A battery pack with a rapid heat dissipation structure comprises a battery shell, a water storage tank body is installed at the lower end of the battery shell, a water pump is installed at the upper right part of the water storage tank body, an air cooling device is installed at the middle part of the front end of the battery shell, a battery pack is installed in the battery shell, and a liquid cooling device is installed at the front right end and the rear right end of the battery shell.

[0008] Preferably, the liquid cooling device includes a No. 1 connection seat and a No. 2 connection seat, the left ends of the No. 1 connection seat and the No. 2 connection seat are jointly equipped with a water cooling pipe, a water delivery pipe is installed between the No. 1 connection seat and the water pump, a mounting plate is installed at the lower end of the water pump, a return pipe is installed between the No. 2 connection seat and the water storage tank, and the No. 1 connection seat and the No. 2 connection seat are respectively installed at the right end rear and right end front of the battery housing. The water in the water storage tank is extracted by the water pump and transported to the water cooling pipe by the water delivery pipe. After the water flows, it flows back to the water storage tank through the return pipe on the No. 2 connection seat, and the water cooling pipe is arranged inside the battery pack. Therefore, when the water circulates through the water cooling pipe, it can effectively take away the heat in the battery pack.

[0009] Preferably, the air cooling device comprises a mounting frame, a mounting seat is mounted on the left inner wall and the right inner wall of the mounting frame, a cooling fan is mounted on one end corresponding to the two mounting seats, and the mounting frame is mounted in the middle of the front end of the battery housing. The cooling fan rotates to blow air, and the wind is then blown to the outer surface of the battery pack through the ventilation holes on the battery housing, and blown out through the ventilation holes on the other side of the battery housing, thereby accelerating the air circulation speed on the outer surface of the battery pack.

[0010] Preferably, ventilation holes are provided in the middle of the front end and the middle of the rear end of the battery housing, and two fixing grooves are provided at the right end of the battery housing.

[0011] Preferably, there is a gap between the cooling fan and the battery housing.

[0012] Preferably, a plurality of the ventilation holes are provided on the battery housing in a rectangular array.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. When the battery pack in the battery housing heats up, the cooling fan on the air cooling device rotates to blow air first, and then the air is blown to the outer surface of the battery pack through the ventilation holes on the battery housing, and blown out through the ventilation holes on the other side of the battery housing, thereby accelerating the air circulation speed on the outer surface of the battery pack to perform a certain heat dissipation treatment on the battery pack.

[0015] 2. When the heat accumulation inside the battery pack is serious and the cooling fan cannot quickly cool it down, the water in the water storage tank is extracted by a water pump and transported to the water cooling pipe by a water pipe. After the water flows through, it flows back to the water storage tank through the return pipe on the No. 2 connecting socket. The water cooling pipe is arranged inside the battery pack. Therefore, when the water circulates through the water cooling pipe, it can effectively take away the heat in the battery pack. At the same time, with the cooling fan, the heat is dissipated inside and outside the battery pack at the same time, which effectively improves the heat dissipation effect of the device and thus increases the service life of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a battery pack with a rapid heat dissipation structure according to the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a liquid cooling device for a battery pack with a rapid heat dissipation structure according to the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of an air cooling device for a battery pack with a rapid heat dissipation structure according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the overall structure of a battery shell of a battery pack with a rapid heat dissipation structure.

[0020] In the figure: 1. battery casing; 2. liquid cooling device; 3. air cooling device; 4. water storage tank; 5. battery pack; 6. water pump; 20. No. 1 connecting socket; 21. No. 2 connecting socket; 22. water cooling pipe; 23. mounting plate; 24. water supply pipe; 25. return pipe; 30. mounting frame; 31. mounting seat; 32. cooling fan; 101. ventilation hole; 102. fixing groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-4 As shown, a battery pack with a rapid heat dissipation structure includes a battery housing 1, a water storage tank 4 is installed at the lower end of the battery housing 1, a water pump 6 is installed at the upper right part of the water storage tank 4, an air cooling device 3 is installed at the middle of the front end of the battery housing 1, a battery pack 5 is installed in the battery housing 1, and a liquid cooling device 2 is installed at the front right end and the rear right end of the battery housing 1.

[0025] The liquid cooling device 2 includes a No. 1 connection seat 20 and a No. 2 connection seat 21. The left ends of the No. 1 connection seat 20 and the No. 2 connection seat 21 are jointly equipped with a water cooling pipe 22. A water delivery pipe 24 is installed between the No. 1 connection seat 20 and the water pump 6. A mounting plate 23 is installed at the lower end of the water pump 6. A return pipe 25 is installed between the No. 2 connection seat 21 and the water storage tank 4. The No. 1 connection seat 20 and the No. 2 connection seat 21 are respectively installed at the right end rear and right end front of the battery housing 1. The water in the water storage tank 4 is extracted by the water pump 6 and transported to the water cooling pipe 22 by the water delivery pipe 24. After the water flows, it flows back to the water storage tank 4 through the return pipe 25 on the No. 2 connection seat 21. The water cooling pipe 22 is arranged inside the battery pack 5. Therefore, when the water circulates through the water cooling pipe 22, it can effectively take away the heat in the battery pack 5.

[0026] The air cooling device 3 includes a mounting frame 30, and mounting seats 31 are mounted on the left inner wall and the right inner wall of the mounting frame 30. A cooling fan 32 is mounted on one end corresponding to the two mounting seats 31. The mounting frame 30 is mounted in the middle of the front end of the battery housing 1; there is a gap between the cooling fan 32 and the battery housing 1. The cooling fan 32 rotates to blow air, and the wind is then blown to the outer surface of the battery pack 5 through the ventilation holes 101 on the battery housing 1, and blown out through the ventilation holes 101 on the other side of the battery housing 1, thereby accelerating the air circulation speed on the outer surface of the battery pack 5.

[0027] The battery housing 1 has ventilation holes 101 in the middle of the front end and the middle of the rear end. The battery housing 1 has two fixing slots 102 at the right end. A plurality of ventilation holes 101 are arranged in a rectangular array on the battery housing 1 .

[0028] It should be noted that the utility model is a battery pack with a rapid heat dissipation structure. When the battery pack 5 in the battery housing 1 heats up, the heat dissipation fan 32 on the air cooling device 3 rotates to blow air, and the air is then blown to the outer surface of the battery pack 5 through the ventilation holes 101 on the battery housing 1, and blown out through the ventilation holes 101 on the other side of the battery housing 1, thereby accelerating the air circulation speed on the outer surface of the battery pack 5 to perform a certain heat dissipation treatment on the battery pack 5. When the heat inside the battery pack 5 is serious, it is difficult for the heat dissipation fan 32 to blow air quickly. When cooling, water in the water storage tank 4 is extracted by the water pump 6 and transported to the water cooling pipe 22 by the water delivery pipe 24. After passing through, the water flows back to the water storage tank 4 through the return pipe 25 on the second connecting seat 21. The water cooling pipe 22 is arranged inside the battery pack 5. Therefore, when water circulates through the water cooling pipe 22, it can effectively take away the heat in the battery pack 5. At the same time, with the cooling fan 32, the heat is dissipated inside and outside the battery pack 5 at the same time, which effectively improves the heat dissipation effect of the device and thereby increases the service life of the battery pack 5.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A battery pack with a rapid heat dissipation structure, comprising a battery housing (1), characterized in that: A water storage tank (4) is installed at the lower end of the battery housing (1), a water pump (6) is installed at the upper right part of the water storage tank (4), an air cooling device (3) is installed at the front middle part of the battery housing (1), a battery pack (5) is installed in the battery housing (1), and a liquid cooling device (2) is installed at the front right end and the rear right end of the battery housing (1).

2. A battery pack with a rapid heat dissipation structure according to claim 1, characterized in that: The liquid cooling device (2) comprises a No. 1 connection seat (20) and a No. 2 connection seat (21); a water cooling pipe (22) is installed at the left ends of the No. 1 connection seat (20) and the No. 2 connection seat (21); a water delivery pipe (24) is installed between the No. 1 connection seat (20) and the water pump (6); a mounting plate (23) is installed at the lower end of the water pump (6); a return pipe (25) is installed between the No. 2 connection seat (21) and the water storage tank (4); the No. 1 connection seat (20) and the No. 2 connection seat (21) are respectively installed at the rear right end and the front right end of the battery housing (1).

3. A battery pack with a rapid heat dissipation structure according to claim 1, characterized in that: The air cooling device (3) comprises a mounting frame (30), a mounting seat (31) being mounted on the left inner wall and the right inner wall of the mounting frame (30), a cooling fan (32) being mounted on one end corresponding to the two mounting seats (31), and the mounting frame (30) being mounted at the middle of the front end of the battery housing (1).

4. A battery pack with a rapid heat dissipation structure according to claim 1, characterized in that: The battery housing (1) has ventilation holes (101) in the middle of the front end and the middle of the rear end, and the battery housing (1) has two fixing grooves (102) in the right end.

5. The battery pack with a rapid heat dissipation structure according to claim 3, characterized in that: There is a gap between the cooling fan (32) and the battery housing (1).

6. A battery pack with a rapid heat dissipation structure according to claim 4, characterized in that: A plurality of ventilation holes (101) are arranged in a rectangular array on the battery housing (1).

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